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Steam Nozzle Example Problem - Steady State Energy Rate Balance
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Find Final Temperature and Cross Sectional Area to achieve a given Exit Velocity leaving the nozzle and entering a turbine using Steady State Energy Rate Balance, Mass Rate Balance, and Ideal Gas Law.
Control Volume Analysis of a nozzle requires both energy and conservation of mass. The same approach used for this nozzle can be used for heat exchangers, turbines, and pumps – any single inlet, single outlet component. (Multiple inlets or outlets can also be modeled by adding those extra terms.) Just start with the general form of the Energy Rate Balance and cross off terms you don’t need.
Be especially careful with your units. There are a lot of opportunities to make unit errors in these problems.
TIMECODES
0:00 Energy Rate Balance
5:35 Mass Rate Balance
6:09 Ideal Gas Law
Control Volume Analysis of a nozzle requires both energy and conservation of mass. The same approach used for this nozzle can be used for heat exchangers, turbines, and pumps – any single inlet, single outlet component. (Multiple inlets or outlets can also be modeled by adding those extra terms.) Just start with the general form of the Energy Rate Balance and cross off terms you don’t need.
Be especially careful with your units. There are a lot of opportunities to make unit errors in these problems.
TIMECODES
0:00 Energy Rate Balance
5:35 Mass Rate Balance
6:09 Ideal Gas Law
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